Nepean Bay Weather Forecast
- 6
- 20
Clear
- 9
- 18
Possible shower
- 7
- 19
Sunny
- 9
- 25
Sunny
- 14
- 21
Showers
- 9
- 18
Possible shower
- 7
- 19
Shower or two
Today 5 Oct Kangaroo Island
Mostly clear. Winds northwesterly 15 to 25 km/h.
Investigator Strait Coastal Waters
- Wind
- West to northwesterly 10 to 15 knots.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly 1 to 1.5 metres.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure system southwest of SA extends a ridge over much of the state, as a cold front clips the southeast early Tuesday. The high will quickly move in behind the front and maintain a ridge over SA as it moves to the east of Tasmania by Thursday. A strong cold front is then expected move into the Bight later on Thursday and move east across the rest of SA on Friday and early Saturday.
Nepean Bay Temperature Statistics View More
October Temperature
Kingscote Airport (7 km)
Lowest 3 October, 2026
7.5 °CAverage October
13.9 °CHighest 1 October, 2026
21.1 °C
Climate (2021–2026)
Kingscote Airport (7 km)
Average Low 2021–2026
9.3 °CAverage 2021–2026
14.8 °CAverage High 2021–2026
21.1 °C